Metal-working appliance.



No. 731,305. PATBNTED JUNE 16, 1903.

J. P; JOHNSON.

METAL WORKING APPLIANCE. AIBLIOATION FILED JAN. 6, 1903.

W 1 66 I ATTORNEYS No. 731,305. PATENTED JUNE 16, 1903- ir. P. JOHNSON.

METAL WORKING APPLIANCE.

APPLICATION FILED JAK.-6, 1903.

N0 MODEL. 2 SHEETS-SHEET 2'.

Wllllilll flllllllllllllill? WITNESSES: INVENTOH 907 W W125i; v 1]? (TO/Z72 8.0.72 9 3 y UNITED STATES Patented June 16, 1903.

JOHN PAUL JOHNSON, OF TUSTIN, MICHIGAN.

METAL-WORKING APPLIANCE.

SPECIFIGATION forming part of Letters Patent N 0. 7 31,305, dated June 16, 1903. Application filed January 6,1903. Serial No. 138,028. (No model.)

To all whom, it may concern.-

Be it known that 1, JOHN PAUL JOHNSON, residing at Tustin, in the county of Osceola and State of Michigamhave invented a new and Improved Metal-Working Appliance, of which the following is a specification.

My invention seeks to provide a simple, inexpensive, and easily-operated appliance for machine shop and blacksmiths uses well adapted for a number of different purposes such as, for example, for heading bolts, rounding up iron after welding, for welding eyebolts, rounding square ends of iron, for making half-round iron, and for welding sharp toe-calks for horseshoes.

My invention comprehends a suitably-arranged supporting-frame, means for detachably holding a die thereto, a plunger-frame slidably mounted on the main frame and having means for detachably holding a die to oppose the die held on the main frame, means for manually moving the plunger-frame in one direction, and a second means for automat-ically returning it to its normal position.

In its more complete nature my invention includes a peculiar codperative arrangement of the main and the plunger frame and die members havingaspecial construction,whereby they can be quickly attached to their respective frames and removed therefrom with out the aid of screws, bolts, or other similar devices; and in its more subordinate features my invention consists in certain details of construction and peculiar combination of parts, all of which will hereinafter be fully explained and specifically pointed out in the appended claims, reference being had to the accompanying drawings, in which- Figure 1 is a perspective View of my improvement, the dies being arranged for heading different sizes of bolts, the parts being in their normal position. Fig. 2 is a transverse section thereof, the plunger frame being pressed down to bring the opposing dies into an operative position. Fig. 3 is a perspective view of the several parts. Fig. 4 is a View illustrating the dies adjusted for making half-round-iron ends. Fig. 5 is a View illustrating my improvement adapted for welding sharp toe-calks. Figs. 6, 7, and 8 are respectively detail views of the lower and the upper bolt-heading dies and the call:-

welding dies. Fig. 9 is a detail View of one of the several different sizes of the detachable bed-plates,

In the practical construction my entire appliance is composed of metal and comprises a main supporting-frame consisting of two parallel uprights 1 1, joined at the upper end by a cross-plate 2, which forms a bed to receive the lowermost or stationary die 0, presently again referred to, and the lower ends of the said uprights 1 are bent at an angle to produce leg portions 1 1, which, together with the diagonally-disposed legs 3 3, made fast to the members 1 1, form the base for the appliance. Near the lower end the members 1 1 have longitudinal slots 4 4, in which is reciprocatingly held a cross-pin 5, the ends 5 of which project beyond the members 1 and join with the two pendent side rods 6 6 of the plunger-frame 6, which are slidable and guided in the apertures 2 2 in the outer or laterally-projecting ends of the bed-plate 2, as shown.

The upper ends of the rods 6 6 are fixedly joined with a cross-rod 7, which has a horizontal socket '7 in one side and a non-circular aperture 7?, that bisects said socket 7, as clearly shown in Fig. 2, and at thesocketed side the cross-head has a pair of horizontallyapertured ears 7 7 to receive the pintle 9,

upon which is mounted the cam-head 10 of a lever 10, which is utilized to lock the upper or plunger-carried die D in place, as will be presently more fully explained.

8 designates a foot-lever for operating the plunger-frame, and the same consists of a single piece of metal bent-upon itself, as at 8, and having its ends flattened, as at 8, and apertnred to rock on the cross-pin 5, and the said flattened ends are projected to form crank portions 8 which are also apertured to receive the pin 8, that joins the said ends 8, with an oscillatory bearing member 11 pivotally hung between the standards 1 1, as shown, and at a point above the bearing 11 a cross-pin 12 is fixedly held on the members 1 1, which carries a torsion-spring 13, one end 13 of which connects with a link-rod 14, pivotally joined to the lever-member 8, said spring actuating the lever to return it to its normal position, and by reason of the springactuated movement of the said lever the plunger-frame is returned to its upper or inoperative position.

The dies 0 and D are detachably held on their respective supporting members, and when said dies are to be used for heading bolts I prefer to form each die with a series of semicircular grooves c d, whereby when the two dies are brought together seven circular apertures are provided, as shown, of different sizes, from one-fourth of an inch as the smallest diameter to three-fourths of an inch as the largest diameter.

As it is intended to use different kinds of dies, the several dies are formed to be easily placed in an operative position, and for such purpose the dies have their ends bifurcated, as at a d to engage the rods 6 6 of the plunger-frame, and each of the said dies has one edge inclined, as at afid, to permit of pulling them sidewise from between the rods 6 6 when they are held at the angle to the said rods 6 6 as shown in dotted lines in Fig. 4:.

The upper die D has a non-circular shank d to engage the aperture 7 in the cross-head, and it is provided with grooves 61 to coiiperate with the cam which locks the die D to the plunger-head.

To make half-round irons, it is only necessary to reverse the lowermost die to bring its flat surface to oppose the grooves in .the upper die.

From the foregoing, taken in connection with the accompanying drawings, the manner of operation and the advantages of my invention will be readily apparent.

When arranged as in Fig. 1, to hold the bolts in place it is only necessary to depress the foot-lever, which will draw the plungerframe with the upper die against its opposing die member. 7

For welding toe-calks a die II of the form shown in Fig. Sis used, and when said die is used the lower die 0 is removed and a bearing-plate I of the form shown in Fig. 9 is substituted therefor upon which to support the horseshoe.

The several parts constituting my improvement have such correlation and are of such shape that they can be readily constructed by a blacksmith without the requirement of any special machinery, and the combined structure is such as to embody the required elements of strength and durability.

Slight changes in the details of construction may be readily made without departing from the scope of the appended claims.

Having thus described my invention, what I claim, and desire to secure by Letters Patout, is

1. The combination with the main frame and the plunger-frame arranged as shown, the plunger-frame including side rods and a cross-head, the latter having a socket in one side and a non-circular aperture bisecting the socket, of a cam-lever pivotally mounted in the socket, and a die having its ends bifurcated to engage the side rods and having a non-circular shank to engage the aperture in the cross-head, said shank having a groove to coact with the cam-lever, as set forth.

2. An appliance of the character described; comprising in combination; a main frame including vertically-slotted parallel standards and a bed-plate at the upper end of the standards adapted to hold a die, a plunger-frame including a cross-head adapted to hold a die to oppose the other die, side rods pendent from the cross-head and slidable through the outer ends of the aforesaid bed-plate and forming end guides for the dies and a lever device mounted on the standard for actuating the plunger, as set forth.

3. In an appliance as described, the combination with the standard or stationary frame, the latter including a bed-plate at the upper end, the plunger-frame, the latter consisting of a cross-head for opposing the bed-plate and a pair of pendent rods slidable through the ends of the bed-plate, and a means for actuating the plunger; of a pair of opposing dies, each having their ends bifurcated vertically to engage the pendent plunger-rods and having one edge of each bifurcated end inclined whereby to permit of pulling the said dies sidewise from between the said pendent rods, and means forlocking the uppermost die from vertical movement independent of the crosshead, as specified.

4. The combination with the main frame including the parallel standards, the latter having elongated slots and a bed-plate at the top of the standards, of the plunger-frame, said frame including a cross-head opposing the bed-plate and a pair of rods pendent from the ends of the cross heads and slidable through the ends of the bed-plate, and lever devices mounted on the standard having lateral portions that extend through the slots in the standards and connect with the lower ends of the pendent plunger-rods, and a pair of opposing dies each having bifurcated ends to IIO interlock with the plunger-rods, one of said I JOHN PAUL JOHNSON.

- Witnesses OSCAR SWANsoN, JOHN L. SIMMONS. 

